Just to say this directly:
You guys laying this out transparent to your team (and policies in favor of your team) is an amazing and impressive thing.
Personally i also believe it's a huge marketing/hiring benefit.
Startups live of implicit trust of their employees (imo their core asset)
Larger companies require explicit agreements with them
Very often when startups become larger companies, this trust breaks.
Having those explicit agreements upfront & transparent (before even joining a company) increases this trust a lot.
Kudos for doing so